Exercise/Workout Advice?

My workout:

Monday:

-HIIT(warm-up,intervals,cool-down,20 minutes total)

-Couch5K App(30 minutes, running/walking intervals)

Tuesday:

-I have no clue what to do for cardio :O

-Strength training

Wednesday:

-HIIT(warm-up,intervals,cool-down,20 minutes total)

-Couch5K App(30 minutes, running/walking intervals)

Thursday:

-I have no clue what to do for cardio :O

-Strength training

Friday:

-HIIT(warm-up,intervals,cool-down,20 minutes total)

-Couch5K App(30 minutes, running/walking intervals)

My strength training involves jumping jacks, push-ups, crunches,squats, lunges, wall-sits, planks and hip lifts, basically kiddy type stuff :P

I eat around 1,000-1,200 calories a day:)

===============>Few questions<==================

1)What is the best time of day to go running outside?(I live in Tx)

2)What cardio should I do for Tuesday & Thursday?

My choices are:

-Billy Blanks Tae-Bo dvd video

-Nike Training Club App video

-Find a random video on youtube:o

My goals:

-Be healthier. My dad is diabetic and has high cholesterol, high blood pressure, arthritis, my mother has heart disease, high blood pressure, high cholesterol, arthritis and I would like to avoid such problems now and later in life.

-Be in shape. I rather not be the chick who is huffing and puffing while walking up the stairs :O It's tacky, especially for skinny people

-Lose muscle. My legs/thighs are muscular and unfortunately it's in my family, my mom has muscular legs and so do my sisters and I. I'd like to have thin legs which do not touch and have a space in between them:) So thin legs:) So lose muscle:)

Exercise/Workout Advice?
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